Standard Science Primary 6 Energy

Ravi used an electric blender to make a smoothie. Which of the following shows the correct energy conversion that occurred?

A Electrical energy → Kinetic energy + Sound energy + Heat energy
B Kinetic energy → Electrical energy → Sound energy
C Chemical potential energy → Electrical energy → Kinetic energy
D Electrical energy → Chemical potential energy → Kinetic energy
Show Worked Solution

Worked Solution

Step 1: The blender is plugged into a power socket (Electrical energy). Step [2-9]: The blades move (Kinetic energy). Step [2-9]: Friction and motor activity produce noise and warmth (Sound and Heat energy).

Correct answer: Electrical energy → Kinetic energy + Sound energy + Heat energy

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